Data for {{ email }}
<ul>
{% for task_list in lists %}
  <li style="background: {{task_list.color}}">
    {{ task_list.name }}
    <ul>
      {% for task in task_list.Tasks %}
        <li>
          {{task.key.id}} - '{{ task.title }}'
        </li>
      {% endfor %}
    </ul>
  </li>
{% endfor %}
</ul>
